Polish train disaster: Rail traffic controller to be charged

Policemen stand by the wreckage of two trains near the town of Szczekociny in southern Poland. The cause of the crash has yet to be determined.

A rail traffic controller is to be prosecuted over the train crash that killed 16 people and left more than 50 others injured in Poland on Saturday night.

According to the BBC, two officials on duty at the time have been questioned over the incident and one will be charged with unintentionally causing the crash, which is being described as Poland's worst train disaster in 20 years.

It says that Poland's President Bronisław Komorowski, the Prime Minister Donald Tusk, as well as Interior Minister Jacek Cichocki and Minister of Transport Sławomir Nowak visited the scene of the disaster.

Flags are flying at half-mast on public buildings and some news websites were using only black-and-white pictures, the BBC said.